sub panel to attic or not?

My 112 year old house has three appartments. I'm thinking of re-wiring the two apartments on the second floor from the wide-open attic and dropping the wires down through the walls. I'm considering the cost difference of putting sub panles in the attic vs. running each new circuit up from the basment.

Each appartment is approx. 800 square feet. No washer or dryer, no dishwasher, no garbage disposer, gas range. So not much demand. How many circuits am I likely to need for each appartment and how many 15 amp vs. 20 amp circuits? This will help me calculate the cost differential of running two separate cables and sub panels up to the attic.

sub panel to attic or not?

Quote:

Originally Posted by ibelieveican

Each appartment is approx. 800 square feet. No washer or dryer, no dishwasher, no garbage disposer, gas range. So not much demand. How many circuits am I likely to need for each appartment and how many 15 amp vs. 20 amp circuits? This will help me calculate the cost differential of running two separate cables and sub panels up to the attic.